package com.tang.model.expresion;

/**
 * @Author tangyuan2meicloud.com
 * @DATE 2021/9/6 8:01
 * @Desc
 * @Remarks
 */
public class Test {
    public static void main(String[] args) {
        Calculator calculator = new Calculator();
        System.out.println(calculator.calculate("10 + 30 + 20 + 40"));
    }
}
